Returns the cumulative beta probability density function.
| Name | Type | Description |
| arg1 | number | The value between A and B at which to evaluate the function. |
| arg2 | number | The alpha parameter of the distribution which must be greater than 0. |
| arg3 | number | The beta parameter of the distribution which must be greater than 0. |
| arg4 | number | An optional lower bound to the interval of x (A). If omitted, it is equal to 0. |
| arg5 | number | An optional upper bound to the interval of x (B). If omitted, it is equal to 1. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
var ans = oFunction.BETADIST(0.4, 4, 5);
oWorksheet.GetRange("B2").SetValue(ans);
builder.SaveFile("xlsx", "BETADIST.xlsx");
builder.CloseFile();